When they catch the younger traitor,
perhaps they could find someone to test the plank or the yard arm or the keel hauling first. I can't imagine amongs the abundant crowd of DIMRAT traitors which would be the most effective example. The sorting task it too complicated. Too many examples, too few slots.
A good keel hauling requires lots of barnacles.
Unfortunately, we keep our vessels in too good a shape to make keelhauling much good anymore. The original point in the wooden ship days was to rake the miscreant over the razor sharp barnacles that infested all such ships, slicing him with hundreds of shallow, painful cuts in salt water. The wee bit of oxygen deprivation involved today would hardly be worth the trouble. I like the bloody chum and sharks idea myself.